Table of Contents

## What is the speed of sound in warm air?

In warm temperatures (15 °C/59°F), the speed of sound travels at 1,220 kilometers per hour (760 miles per hour), but in the cold temperatures of (-56°C/-67°F), the sound travels at 1,056 kilometers per hour (660 miles per hour).

**What is the value for the speed of sound in air?**

330 m/s.

Example calculation The accepted value for the speed of sound in air is 330 m/s.

**How do you measure the speed of sound in air?**

SPEED=DISTANCE/TIME. To work out the speed of the sound in metres per second, divide the distance in metres by the average time in seconds. For example 170 metres divided by 0.50 seconds = 340 m/s.

### How do you calculate the speed of sound and temperature?

Speed of sound c ≈ 331.3 + (0.6 × ϑ) in m/s. That gives e.g. at a temperature of ϑ = 20°C a speed of sound of: c ≈ 331.3 + (0.6 × ϑ) = 331.3 + (0.6 × 20) = 343.3 m/s….

Temperature ϑ (theta) °C | ↔ | Speed of sound v m/s |
---|---|---|

Frequency f Hz | ↔ | Wavelength λ m |

**What speed is the speed of sound?**

about 761 mph

If we consider the atmosphere on a standard day at sea level static conditions, the speed of sound is about 761 mph, or 1100 feet/second. We can use this knowledge to approximately determine how far away a lightning strike has occurred.

**How do you find the speed of sound in air GCSE?**

The speed of sound in air is often measured using the following method:

- two people (person A and person B) are placed a distance apart, eg 100 metres.
- person A fires a starter’s pistol.
- person B times the difference between seeing the flash of the gun and hearing the sound – this is measured in seconds.

#### What is the speed of sound in gas?

Speed of Sound in Gases

Gas | ft/s | m/s |
---|---|---|

Air | 1086 ft/s | 331 m/s |

Air, 20ºC | 1125 ft/s | 343 m/s |

Ammonia (30ºC) | 1443 ft/s | 440 m/s |

Argon (27ºC) | 1059 ft/s | 323 m/s |

**How was the speed of sound measured?**

The first method is based on simply measuring the time it takes a pulse of light or sound to traverse a known distance; dividing the distance by the transit time then gives the speed. (The frequency of a wave is the number of crests that pass per second, whereas the wavelength is the distance between crests).

**What is the formula for calculating speed of sound?**

The equation for the speed of sound in air v=√γRTM v = γ R T M can be simplified to give the equation for the speed of sound in air as a function of absolute temperature: v=√γRTM=√γRTM(273K273K)=√(273K)γRM√T273K≈331ms√T273K. v = γ R T M = γ R T M ( 273 K 273 K ) = ( 273 K ) γ R M T 273 K ≈ 331 m s T 273 K . v=fλ.

## What is the velocity of sound in air?

344 m/s

The term is commonly used to refer specifically to the speed of sound in air. At sea level, at a temperature of 21 degrees Celsius (70 degrees Fahrenheit) and under normal atmospheric conditions, the speed of sound is 344 m/s (1238 km/h or 770 mph).

**How is the speed of sound in air figured out?**

The speed of sound in air is approximately figured out by the formula …. speed of sound (m/s) = 331.5 + 0.60 T (°C) For example, the speed of sound in air is 386 m/s at 100 °C. The sound of speed in air is increased by 0.60 m/s for each increase of degree in air temperature.

**Why does the speed of sound increase with temperature?**

The sound of speed in air is increased by 0.60 m/s for each increase of degree in air temperature. The speed of sound is faster at higher temperatures because molecules collide more often.

The lower the density that of a medium, the faster the speed of sound and the higher the compressibility is, the slower the sound travels. The speed of sound in air is approximately 331.5 m/s at 0 °C or around 1200 km per hour.

**How many miles per hour does a sound wave travel?**

At normal atmospheric pressure and a temperature of 20 degrees Celsius, a sound wave will travel at approximately 343 m/s; this is approximately equal to 750 miles/hour.